If the tools are bad, nature's voice is muffled. If the tools are good, nature will give us a clear answer to a clear question.

In religion, you're supposed to be somehow in touch with something deep and full of mysteries.

I mean science was blamed for all the horrors of World War I, just as it's blamed today for nuclear weapons and quite rightly.

It's amazing how much progress there's been in China, and also India. Those are the places that really matter - they're half of the world's population. They're the places where things are enormously better now than they were 50 years ago. And I don't see anything that's going to stop that.

The bottom line for mathematicians is that the architecture has to be right. In all the mathematics that I did, the essential point was to find the right architecture. It's like building a bridge. Once the main lines of the structure are right, then the details miraculously fit. The problem is the overall design.

All stable processes we shall predict. All unstable processes we shall control. Describing John von Neumann's aspiration for the application of computers sufficiently large to solve the problems of meteorology, despite the sensitivity of the weather to small perturbations.

The key to having an interesting life is to always say "yes" to anything crazy.